What is the MSD 8739 Two Step Module Selector?

The MSD 8739 Two Step Module Selector is a performance tool designed to enable users to select between two separate ignition timing curves or RPM limits for enhanced driving conditions. This module allows drivers to optimize their vehicle's performance in various scenarios, whether for street use or race applications. By using this selector, one can manage ignition timing settings effortlessly, tapping into the full potential of their ignition system. It’s especially useful in motorsport environments where rapid adjustments can lead to decisive advantage.

How does the MSD 8739 Two Step Module Selector work?

The MSD 8739 operates by allowing the driver to switch between two programmed RPM limits or ignition timing profiles. This is accomplished via a simple switch that can be installed within easy reach of the driver. The two-step feature acts as a rev limiter during launch, allowing for consistency and control at the start of a race or hard launch. This ensures optimal performance tailored to the circumstances, whether on the track or for street applications, providing versatility for performance enthusiasts.

What are the installation requirements for the MSD 8739?

Installing the MSD 8739 Two Step Module Selector requires basic automotive wiring skills. It connects to the ignition system, which typically includes splicing into existing wiring or using the provided connectors. The device is designed for compatibility with various MSD ignition systems, making it a flexible option for performance upgrades. Following the detailed installation instructions is crucial to ensure proper function. Proper installation will allow enthusiasts to fully utilize the device's features for improved performance.

Is the MSD 8739 compatible with all vehicles?

While the MSD 8739 Two Step Module Selector is versatile, it is specifically designed for use with MSD ignition systems. Compatibility tends to vary with vehicle models, engine types, and existing ignition setups. It is ideal for high-performance and modified vehicles where control of ignition timing can substantially impact performance. Always check the manufacturer’s specifications and ensure that your ignition system aligns with the requirements of the MSD 8739 for optimal results.

Can I use the MSD 8739 for daily driving?

Yes, the MSD 8739 Two Step Module Selector can be used for daily driving, although its primary intention is to enhance performance under race conditions. The ability to switch between different ignition maps allows users to optimize their vehicle's response depending on the anticipated driving scenario. This versatility means you can have a more conservative tune for everyday use and a more aggressive setup for spirited drives or track days, enhancing both safety and performance.

What benefits does the Two Step feature provide?

The Two Step feature on the MSD 8739 allows for a controlled engine launch by limiting the engine RPM before takeoff. This is particularly beneficial in drag racing, where consistent launches can dramatically improve overall performance. By holding the RPM at a preset limit, drivers can achieve optimum torque without excessive wheel spin, leading to better acceleration off the line. This feature is beneficial for enthusiasts looking to refine their launch techniques for better race outcomes.

Can I modify the ignition curves on the MSD 8739?

Yes, the MSD 8739 allows you to modify ignition curves, giving you the flexibility to customize the performance characteristics according to your needs. You can create distinct ignition timing maps for different driving conditions, such as track applications or street driving. Leveraging this customization is crucial for tuners aiming to maximize performance gains. Fine-tuning your ignition curves can lead to increased power output and efficiency under various operating conditions.

What types of connectors does the MSD 8739 use?

The MSD 8739 Two Step Module Selector utilizes spade connectors for easy installation into existing ignition systems. These connectors are designed for reliable electrical connections while being straightforward to work with during installation. Ensuring solid connections is important for consistent performance and minimization of electrical interference. The quality of these connectors contributes to the durability and effectiveness of the unit in demanding automotive environments.

Will the MSD 8739 affect my fuel economy?

While the MSD 8739 is primarily aimed at performance enhancement, its ability to manage ignition timing can have indirect effects on fuel economy. By allowing for adjustments based on driving conditions, users may find they are able to run a more efficient ignition curve during normal driving, optimizing fuel delivery and consumption. However, for race conditions, the focus leans more towards maximizing power rather than fuel economy, making the device a versatile option for varied driving needs.

Where can I buy the MSD 8739 Two Step Module Selector in Martinique?

You can buy the MSD 8739 Two Step Module Selector in Martinique at Ubuy. This platform offers a selection of auto parts that ensure quality and reliability for your automotive needs. Ubuy is a reputable source for purchasing performance parts like the MSD 8739, providing convenient access for automotive enthusiasts looking to enhance their vehicles.

Comment acheter MSD 8739 Two Step Module Selector en ligne sur Ubuy ?

Il est facile d'acheter MSD 8739 Two Step Module Selector en ligne sur Ubuy.. Il vous suffit de rechercher le produit, de choisir votre mode d'expédition lors du paiement et de le faire livrer à votre emplacement.

MSD 8739 Two Step Module Selector est-il disponible pour effectuer des achats en ligne à Martinique ?

Oui, chez Ubuy Martinique, ce produit est disponible pour vous à un prix raisonnable.. Le MSD 8739 Two Step Module Selector n'est pas disponible localement mais vous pouvez nous faire confiance avec nos services d'expédition express.

Combien de temps faut-il pour obtenir le produit après avoir passé la commande ?

Le délai de livraison de votre produit commandé varie en fonction de ce que vous avez commandé et de la méthode d'expédition que vous avez choisie.. Le délai de livraison estimé est mentionné lors du processus de commande, alors soyez insouciant lors de vos achats.

MSD Voir l'original

Choose between different RPM limits at different times with the MSD module selectors.

MSD

Numéro d'article: 2083960

MSD 8739 Two Step Module Selector

85% des répondants recommanderaient ceci à un ami

Numéro d'article: 2083960

€ 173

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Choose between different RPM limits at different times with the MSD module selectors.

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Ce qui se démarque

Versatile Selection

The MSD 8739 allows users to easily switch between two distinct timing maps, enhancing performance tuning for various driving conditions and enabling greater control over engine power delivery.

User-Friendly Interface

Designed for simplicity, the two-step function lets users rapidly select timing setups without complex programming, ensuring quick adjustments on the fly for optimal performance during racing or daily driving.

High-Quality Build

Constructed to withstand harsh automotive environments, the MSD 8739 ensures durability and reliability, making it a long-lasting investment for enthusiasts who demand top-tier performance from their vehicles.

Détails du produit

Allows user to switch between 2 RPM/timing modules
Set different RPM limit for launch and over rev protection
Improves consistent hole shots
Must be used with MSD soft touch rev limiter
Must be used with MSD timing control
Gives ability to choose 2 different RPM limits

Operation Mode	ON-OFF
Current Rating	1 A
Operating Voltage	12 volts
Contact Type	Normally Open
Connector Type	Quick-connect
Switch Type	Limit Switch, Touch Switch
Terminal	Screw Or Quick-connect
Circuit Type	2-way
Mounting Type	Panel Mount or Surface Mount
Actuator Type	Push Button
Number of Positions	2
Controller Type	Push Button
Control Method	Touch
Connectivity Protocol	X-10
Compatible with Vehicle Type	racing vehicles
Control Type	rev limiter control and timing control
Color	Multicolor
Item Dimensions	8 x 7.05 x 2.3 inches (20.3 x 17.9 x 5.8 cm)
Unit Count	1 Count
Number of Items	1
Material Type	Plastic
Contact Material	Copper Or Phosphor Bronze
International Protection Rating	IP00
Specification Met	Not Met
Brand Name	MSD
Model	8739
Global Trade Identification Number	00085132087396
Manufacturer	MSD
UPC	085132087396
Included Components	MSD 8739 Two-Step Module Selector
Item Type Name	MSD 8739 Two-Step Module Selector
Part Number	MSD-8739
Part Interchange Info	8739
Brand	MSD
Material	Plastic
Item dimensions L x W x H	8 x 7.05 x 2.3 inches (20.3 x 17.9 x 5.8 cm)

À qui est-ce destiné ?

Performance Enthusiasts
Ideal for users seeking to optimize their vehicle's performance through tailored ignition timing adjustments.
Racing Applications
Perfect for competitive racing environments where precise engine tuning is essential for maximizing speed and efficiency.
Custom Tuners
Great for automotive professionals or hobbyists who specialize in customizing and fine-tuning vehicles for high performance.

Casual Drivers
Not suitable for everyday drivers who prioritize convenience over performance tuning and engine optimization.

DESCRIPTION DU PRODUIT

MSD 8739 Two Step Module Selector

About This Item

Introducing the MSD 8739 Two-Step Module Selector: Take control of your vehicle's performance with this innovative module selector from MSD. Designed to provide you with the ability to choose between two different RPM limits, this module selector opens up a world of possibilities for your vehicle's performance. The MSD module selector is a must-have for any enthusiast looking to optimize their vehicle's performance. It works seamlessly with the MSD Soft Touch Rev Controls or MSD Timing Computers, allowing you to switch between different RPM or retard modules. One of the key features of this module selector is its ability to set different RPM limits for the launch and over rev protection.

This ensures that your vehicle performs optimally in various driving conditions, giving you consistent hole shots and improved acceleration. To use the MSD 8739 Two-Step Module Selector, simply connect it to your MSD Soft Touch Rev Control or Timing Controller with a high-speed retard module. This allows you to easily switch between the different RPM or timing modules and customize your vehicle's performance to suit your needs. Please note that the Two-Step Module Selector does not include RPM modules. For optimal performance, it must be used with an MSD Soft Touch Rev Control or a Timing Controller with a high-speed retard module. Don't compromise on performance.

Upgrade your vehicle's performance with the MSD 8739 Two-Step Module Selector. Shop now and unleash the full potential of your vehicle's engine.

Vous avez une question ? Chattez avec nous

Questions et réponses des clients

question: Comment acheter MSD 8739 Two Step Module Selector en ligne sur Ubuy ?

répondre: Il est facile d'acheter MSD 8739 Two Step Module Selector en ligne sur Ubuy.. Il vous suffit de rechercher le produit, de choisir votre mode d'expédition lors du paiement et de le faire livrer à votre emplacement.
question: MSD 8739 Two Step Module Selector est-il disponible pour effectuer des achats en ligne à Martinique ?

répondre: Oui, chez Ubuy Martinique, ce produit est disponible pour vous à un prix raisonnable.. Le MSD 8739 Two Step Module Selector n'est pas disponible localement mais vous pouvez nous faire confiance avec nos services d'expédition express.
question: Combien de temps faut-il pour obtenir le produit après avoir passé la commande ?

répondre: Le délai de livraison de votre produit commandé varie en fonction de ce que vous avez commandé et de la méthode d'expédition que vous avez choisie.. Le délai de livraison estimé est mentionné lors du processus de commande, alors soyez insouciant lors de vos achats.

MSD Control Units Editorial Review

The MSD 8739 Two-Step Module Selector is a versatile product that allows for easy control of ignition timing. It is compatible with MSD 6AL and higher module boxes, making it suitable for a wide range of vehicles. The module selector is universal, allowing for potential compatibility with various engine types. However, the cable length may vary, so it is important to measure the required length before installation. Overall, this product offers a convenient solution for those looking to enhance their ignition system.

Avis et évaluations clients

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Avantages

Easy control of ignition timing
Compatible with MSD 6AL and higher module boxes
Universal compatibility with various engine types

Les inconvénients

Cable length may not be sufficient for certain installations

CONFIANCE EN LA PLATEFORME & PROTECTION DE L'ACHETEUR

4.2/5 9704 reviews

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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot

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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot

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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot

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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot

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Limitations : Pour les produits expédiés à l'international, veuillez noter que toute garantie du fabricant peut ne pas être valide ; les options de service du fabricant peuvent ne pas être disponibles ; les manuels, instructions et avertissements de sécurité des produits peuvent ne pas être dans les langues du pays de destination ; les produits (et les matériaux qui les accompagnent) peuvent ne pas être conçus conformément aux normes, spécifications et exigences d'étiquetage du pays de destination ; et les produits peuvent ne pas être conformes à la tension et aux autres normes électriques du pays de destination (nécessitant l'utilisation d'un adaptateur ou d'un convertisseur le cas échéant). Il incombe au destinataire de s'assurer que le produit peut être importé légalement dans le pays de destination. En cas de commande auprès d'Ubuy ou de ses filiales, le destinataire est l'importateur officiel et doit se conformer à toutes les lois et réglementations du pays de destination.
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€ 173

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MSD 8739 Two Step Module Selector

€ 173

Livraison rapide

Retour gratuit*

Emballage sécurisé

Produits 100 % originaux

Conformité PCI DSS

Certifié ISO 27001

Ce qui se démarque

Détails du produit

À qui est-ce destiné ?

DESCRIPTION DU PRODUIT

About This Item

Questions et réponses des clients

MSD Control Units Editorial Review

Avis et évaluations clients

Donnez votre avis sur ce produit

Avantages

Les inconvénients

CONFIANCE EN LA PLATEFORME & PROTECTION DE L'ACHETEUR

POURQUOI ACHETER CHEZ NOUS

Historique des prix du produit

Informations importantes

€ 173

Assurance Ubuy

Livraison
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Retour
gratuit^*